Pattern mechanism for knitting machines



Sept. 11, 1928.

N. J. PERRY PATTERN MECHANISM FOR KNITTING MACHINES Original Filed Sept. 13. 1920 I V 5 OML can colvrfial I v v A H rwmloz NapoleonJRerry Patented Sept. 11, 11928.

-; i u Nrrso STATES NAroLnoN J: PERRY, or NASHVILLE, TENNESSEE, AssIGiIoR To MAY HosiEnY "QMILLS, or NASHVILLE, TENNESSEE, A oonronnrron or TENNESSEE.

PATTERN MECHANISM FOR KNITTING MACHINES.

Application filed September13, 1920, semiino. 409,981. ReneWedFebruaryB, 1928. 1

i The objectof mysaid invention is to pro;

vide f an improved "patternmechanisnr for controlling the dial needles of a dial and cyl-' inder rib knitting machine primarily of the typehaving a stationary needle cylinder and.

rotary cam ring, but not necessarily limited to such type. Referenceis had to my copending application No. 348,071, December 29, 1919, for details of construction of the'machine not here shown, the pattern mechanism here described being a modification of that of the application. It is particularly adapted for use in a machine for knitting plain fabric by eitherrotary or reciprocating knitting and also adaptedv to knitribbed fabric, as in my said application; 3 I

Referring to the accompanying drawings which are made a part hereof and'on which similar reference characters indicate similar changing camwheel22, a drum, as 3 to control the yarn-feed, the picker mechanism,-etc., and one or more ratchets 4 or like means for rotating it, substantially as in the patent to Mayo 726,178. I a

On the knitting head is a pinion 5 as in my application 348,071 adapted to control the cams of the dial cam plate, and a rack-seg ment 6 is adapted to be moved up anddown to engage or not with the pinion as the knitting head rotates. The rack-segment is fixed a to a rod 7 slidingly mounted in a bearing in bracket 8, and has a plate 9-fixed to it and to another rod 10 also slidably mounted in bracketS. The latter rod slides in an elongated slot 11 in plate 8 and holds the rack 6 and connected parts in proper radial position i for engagement with pinion 5. An eccentric bearing 12 surround ng rod 7 serves to ad ust the rod in any direction bYIOtfltlOIl of the bearing, and thus adjusts the rack radially or circumferentially of the machine, or gives it a compound movement providing bothradial and circumferential adjustment in varying degrees. Thebearin such adJustment by set-screw13. a

extension; 1410f a lever 15 and the lever has a spring 16 underneath for contact with the drum as in the Mayo patent. At certainin tervals aboutthe drum are afiixed sixscrews (r is held in place, afterv The rod 7 rests at its lower. end on a lateral 17 each adapted at a proper timeto inove the I rack into engagement with the pinion and thus change the positions of the dial cams.

i The details of my lmprovements may be changed in various ways] Different jnumbers of screws may be used according to; the i nature of work desired and projections may be formed on the drum'in various ways to."

serve the same purpose, and other changes will suggest themselves to those skilled in the ar Certain features are adapted for use in knitting machines of other-types, aswell as various other machines in which pattern mechanism is employed, the true scope of the invention being defined in the appended claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent, is

1. In a patternm'echanism cylinder knitting machines adapted to produce either ribbed, plain circular-"or recip rocating work, as desired, a main cam shaft,

cam on theshai't to vary the direction of movement of the machine, a cam drum fast on the shaft, a rod movable by the cam drum, and a rack pro ectmg laterally from the rod for dial land to engage and actuate'a dial cam controlling pinion, substantially as set forth;

2. In a pattern mechanism for knitting machines, a slidable rod, means for moving it vertically, a rack at the upper end of the rod for engagement with a pinion onthe knitting head and means for adpisting the rack radially and circumferentially relatively to the V 1am 3. Ina-pattern mechanism,aslidable rod, a

pinion.

cam to raise and lower the rod, a guide member, an eccentric bearing rotatably adjustable relatively to the rod, and engaging an opening in the guide member.

1. In a. pattern mechanism for circular knitting machines, a rack forengagement with a rotating pinion, and means to adjust the rack radl ally and circumferentially of the machine comprising an eccentrlc bearing connected to the rack and a fiqged snpport for the bearing, substantially as set forth.

5. In a pattern mechanism for knitting mash-l nes, a cam: a vertieally s idahle and. connected theretqf r ertical movem n means at the upper end of the rod to engage with dial cam adjusting devjnes on the knit-. ting head and means to adjust the upper end of the rod 'radia1ly. and c-ireumferentially of the, machine. '6, "Ina pattern aneehanism for knitting machinesia slidablerddpmeans for mo'vingit vertically, a raelr at, the upper. end "of "the controlling the speed and direetionot the machine, a pattern drum fined to the shaft haying means for controlling the yarn feed,;

the instep cams and pickers and having also r es f studs h q lever d pt rest with its free end upon saidfstudsj, a rod ex ending awa d eea t dlsver a rack;

segmenton said nod, and a, stgrwwheel adaptedto be engaged by said rackat predetermined intervals. A

it Inflaknitt ns mashin v wm etebl about the axis of the machine, means where by the position of said cam may be varied, a

rod. on'the fixedafmame of the machine having at one end an abutment adapted to operate said positioning means, patternmechanism adapted to place said abutment in position. to engage the positioning means fonthe cam, an eccentric sleeve providing aflbearing for the rod' and adaptedfon rotany;

adjustment about the same, and means for supporting the sleeve, substantially as set forth; v I i I 9, In a pattern mechanism for knitting machines, a slidable rod, means for movingit vertically, a rack at the upper end ofthe rod for engagement with a pinionon the knitting head and" means for ustingthe rack cir cumferentially of the knitting head, substantially as set forth.

f In witness whereof, I hereunto set my hand at Nashville, Tennessee, this 9th day of Sepv D. nineteen hundred and twenty;

tember, A. a

. NAPQLEQN J. PERRY. v 

